Type-writer.



No. 814,119 PATENTED MAR. 6, 1906.

J. & A. DEY.

TYPE WRITER.

APPLIOATIOH FILED 001*. 20. 1903.

analogous machine whether such movable -me|nl er is the platen or other element, which JOHN OF Y, ()F

SYRALI lSE, NEW YORK. AND ALEXANDER, DEV, Oh

GLASGOW, SCOTLAND.

TYPE-WRITER.

Specification of Letters Patent.

Eateuted March 6, 3.995.

.tphlicntion no 0mm 20, 1903. Serial 110471737 To wi l whom jri man, con/corn:

Be it known that we, dorm DRY, residing at Syracuse, in the county of Onondaga and State of New York, and ALEXANDER 'DEY, residing at Glasgow, in 'Lhe'oounty oi Lnnerlg, Scot land, hove invented oer-minnow and use ful i in Jrovements in Type-VVritors, of which the fo owing is a full, clear, and oxuct description, such as will enuhle others skilled in the art to which it appertaine to make and use the same,

This invention relates to type-Writers; and ite object is to provide an im movement in the carriage-feed thereof.

In most ty owriters: us heretofore con etructed there asheen aserious and acknowledged defect in that the ooriioge-l'eeil mech- 2113811 has been so ermstructed es to advance the carriage an equal distance for each stroke irrespective of the character of the impression. The result of such construction will he most readily apparent upon considering the relative appearance of the letter combination mm in conunenee and ll in tiilf The mm occupies the more sparse as the ll and is cramped in such space, whi h is comparatively very mus-h more then should be assigned to the ll combination.

The present invention pro osoe e dilforvm tiel spacing for the letters w rich shall assign to the1n and w, which have three la s, their pr'per space; to the f," i, i' and t," whir-hhoveonlyoneleg,their proper space, and to the other letters, which may he said to have two legs, their intermediate and proper space Such princi ile of difl'erentiul s isioing will he found uecful also not only in :ilorentiet-ing the spaces for various letters as above, hut in various other ways, as providing pro 'mrly-difl'erentiated spaces for venous punctuation quarks, spaces between 1 words, the capital letters, and other symbols.

The invention may he said to propose, broadly, a. movement of the movable member of the printing-eouple of a type-writer or movement shall he differentiated in accord ance with the letter-key, symbol-key, or other key hy the action of which said niovemom. is produced or regulated.

Further objects and advantages of the in of the trate an ember iment of the invention, Figure 1 is a section all view showing conventionall some of the elements of 'a. typewriter with our improved feeding or spacing mechanism applied thereto. Fig. 2 1s a top plan, partly broken-awe showing the relation between the traveling carriage rind the parts by which its movement is produced and regulated. Fi s. 3 to 7 are details of various elements. igs. 8' to 10 are broken details of various forms of key-hars used in carrying out the invention.

Similar reference characters refer to eimi lnr arts throughout the several views.

he framework of the machine is shown conventionally as comprising a hose d-- erds 2, and ring or top ipinte 3, supposithi in the standards and iteel supporting the pivoted ty e-bars Upon a rod 5 at the rear use are pivotaliy mounted the keyhors 6 and the space-her T, equipped with the usual type-keys 8 and spacedrey 9. Tho key-bars are connected to the typehers, as shown, by the connecting-rods 10 11, and both the type-hers and space-bar pass over the universal hur 12,11ormally held in upper position by means of aspring 13, the lower end of which rents upon an abutment 0r (arosepiece connected to the base, as at 14.

On the home of the machine are supported ways 16, in the resent instance shown as vertically dis oser withhalhre'ces in their sides, with w liCll' cooperate oppositely-disposed bull-races in the sides of guides 17 18,

normally under tension tending to feed it along its ways or track.

ll he parts thus for described are of the usual construction and are illustrated merely connected to the frame 19 of the reoiprocetit is possible to obtain a dill'erential spacing for the various letters and symbols, and the present embodiment of which will now be described.

Secured. to the platencarriage it), as by the angle-pieces 23, is a feed-rack 24, which IIl4Z.ll-S with a pinion 25, loosely mounted upon a stud. 26, carriedby a bracket 27,-se-- cured to some suitablepart of the framework, as the way-bar 15. Loosely mounted upon the same stud 26 is a sleeve 28, carryinga toothed wheel 29, which toothed wheel is eonnci'ztcd to the pinion 2.5, so as to rotate therewith in one direction by means of the pawl 30, pivotally mounted upon the toothed wheel and engaging the ratchetu'heel 31, secured to the pinion. carriage-return movement, as it is termed. the pinion may rotate independently of the heel. Suitably mounted upon the frameworh of the machine, as by the second bracket 32, secured to the way-bar 15, is a short shalt or spindle 33, preferably arranged, as shoun, at right angles to the studj ti and in the horizontal plane of the toothed wheel 3). This spindle carries at one end and in a position to contact with the teeth of the toothed wheel a series of teeth or steps 34;. arranged in three rows longitudinally of the spindle, the distance between successive teeth. of anyone row being substantially tn ice the width of the teeth and the teeth in successive rows being staggered in successive steps, as willbc clear upon ins motion, of the drawings, especially the deve oped view of Fig. 6. On the outer end of the spindle 33 is a rstoilet-wheel 35, the number of teeth on which is-suitably proportioned to the number of teeth or stops on the other end of the spindle, there being preferably the same number. Carried at the end of the bracket 32 and adjustably mounted thereon, as by a set-iscrew 36, passing through a longitudinal slot 37, is an adjustable stop 38, by the adjustment of which may be re ulated the travel of a spring-pawl 39, by wiich movement is given to the ratchet and spindle 33. This springfliawl, which may be of any desired construction, whether made of spring metal or having a pivoted member or members, is connected to be actuated by the movement of the key-bars and space-bar through a connection with the universal bar, and the amount of movement given to said pawl will determine the amount of rotation of the spindle 33, and consequently the particular stop thereon which 1s brought into Upon the i equipped with the let 0 crative position to restrain the niovenwm o the toothed whee 29 and the it' l oi i lucarriage. in the present instance this pa n! is shown as mounted upon an intermediate rock shalt -10, suitably journulcd in the framew rk, said loch-shaft being provided with arms ll. ll, proiecting therefrom and oonnrrtcrl by 1r:urnvoting-rods 4-13 to it" mu versal bar l2, so as. to be rot-lied thereby.

A differential movement may be given to the universal bar and {lUYUI'illTlglV to the car ria e in many Ways, which will be readily suggested. in the present instance the typehars are so coi'istructed, corresponding to the arran ement of stops in three rows upon the spind 33, as to cause a movement of the universal. bar through one, two, or three units of space, thereby moving the pawl fill through corresponding units and bringing a sto ol' the first, second, or third row of the series of stops on the spindle into position to restrain the movement of the toothed wheel, said toothed wheel and carriageaack being; allowed to feed the intervening distance. Such diil'erential movcuncnt is given to the ui'iiversal bar by *r or cut ting out certain. of the lceyplniita, :is tliose which arry keys allotted t and act mine the typo bars nbols which require a mininu-ui a as l,"' t, 61c Such a bar is slim-tn in big, b recrsscd at 4st. Those symbols win-ch 'rw ui're the medium space are allotted to 2: typo-bar having a straight lower edge, as 121 Fig. 1']. and those that require an extra space, as in and w,"

1 have their kepbun: pmvided with a depend ing lug or web, as at 45, Fig. 10, said lugs; as well as the recesses, being, dis iosed above the universal bar, so that they will determine the amount of movement which. will. be given to bar upon the actuation of The keys. The operation should be clear to those sliillcd in the art from the description already given, but may be briefly sunnuarizod. Upon strikin a key, as the letter :11," the l eybar of w ich, as in Fig. It is provided with a depending luqr, the universal bar and pawl 39 will bedrawn down to a distance equal to three teeth of the ratchet 35, and the spindle 33 will be revolved so as to carry the stop which is in contact with the toothed wheel 29 away from. the tooth on said wheel and allow the wheel to revolve until it has passed the two succeedin stops, and its fur ther motion is restrained )y contact between the next stop and one of the teeth of the wheel. If a different key is struck, the pawl 39 will be moved to turn the ratchet-wheel to the distance of one or two teeth, and the carriage will be permitted a corresponding spacing-feed.

The toothed. Wheel is under constant rotary tension from the spring-drum, and it is found that as the s indle 33is revolved it carries the stops away mm the path of the teeth on the I l' l wheel, and the motion of such wheel is steady and practically continuous so long as the motion of the spindle rontinues. Thus while apparently the motioi'i of the toothed wln'eel is one of dropping from one of the stops to the next it is practically a continuous steady motion, such as is desirable in machines of this class.

It will be obvious that verym any changes may be made in the details of this invention both with regard to the elements wliioli eonstitute the essence of the invention and the elements associated therewith in use, We do not desire to limit ourselves to any particular kind of type-writer or analogoue machine, Whether it is of the type-liar the key-wheel class, or any other class, nor to any particular construe til mo i in eons for taking the impression or for causing or regulating the feeding movement, as the present invention may be embodied. in a great variety of coin struetiions which. would still attain the all vantages and utilize the principles here suggested or disclosed As a speoifir instance it may he noted that the character of the element conneeted to be actuated with the traveling carriage, in the present embodiment the toothed wheel, and of the stops which cooperate with said elements in determining the extent of feed or the rarriage is quite immaterial so long as they embody the feature of stops adapted to ooiigieratf'z with the carriage to permit a dillerantlal inning l'ned thereof, W'hile We have doseriloed a construction which provides for three diil'orent feeding movements, one of whirl: is taken as the unit and is assigned to v rmin letters, it will be obvious that any desired number of feeding n'nwrznonts :iiii'ering in mtrnt might be pro-- vidod for, which Feeding; znovoments could he made up of any desired number of units and the units proportioned to various letlorsin any de ired ratio, under certain oirruun stances it might be desirable to cause a feed ing movement equivalent to two units For some of the letters, as the lQi t(t1l, (uw of three units for some of the letters, as the lottor a, and one of four units for some of the letters, as the letter in.

Specific advantages of the invention which may he noted in addition to those wliieh will lie obvious reside in the improved appearunre of the copy where such a dill'erentiaL sparing n'ioolianisin used and in the greater arr-ope which may he allowed in the selection of typo to form, size, and arrangement.

'lhroughout the spooilication and Claims it is to he understoml that the terms which are used for the purposeof dosvrihing the inven tion are used with a full knowledge of the wide range of equivalents due to .the present development of the art to which this invention relates, and such terms are arrordingly to be interpreted in a desrriptive and not a limiting sense.

.l'laving described our invention, weal We claim as new, and desire to Saturn by Letters Patent, io-

l, In a typewriter, in eoiuliiimtion, a platen mounted For traveling movement upon suitable ways, a series of type elements, a se ries of keys connected to control said type elements, means for putting said platen under tension tending to feed it met the printing npoint, a member connected to be rotated u pen movement of said platen, a series of rotatahly-mounted stops adapted to be interposed in the mth of, rotation of said member to restrain the rotation thereof and movement of the platen, means for releasing said restrained member from the control of said stops upon the actuation of the keys, and means dependent upon the particular key whieh is actuated for determining the dislance through which said member will rotate before its rotation is again restrained by one of said stops.

2. In a typewvriter, in combination, a

platen, a series of type elements, a series of keys connected to control said type elements, means for putting said platen under tension tending to feed it past the printingpoint, a rotary element connected to be rotated as said platen is fed forward, rota'itably'inounted means for preventing the rotation of said element, means common to the keys for leasing said element to allow rotation thereof, and means dependent upon the particular key which is actuated for determining the are through which said rotary element shall move upon any given actuation.

3. In a lyprwvriter, in combination, a platen, a series of type elements, a SGIiG-S of AIByS controlling said type elements, means f r Feeding; said platen past the printing point, a rack carried with said platen, a inion meshing with said rack, a toothed W168i mounted ior rotation with said pinion, a member haying a series of stops fixed there on adapted to be successively interposed in the path of the teeth on said wheel, and a seli'iotive device controlled by the keys for detoruiining which of said steps is so interposed.

4. in a type vriter, in K combination, a ilalen, a series of type elements, a series of lnrys controlling said type elements, means for feeding said platen past the printingpoint, a rack carried by said platen, a pinion meshing with said rank, at toothedwheel eonneeted'tosaid pinion to rotate therewith, a shaft carrying a series oi rows of stops adapted to be interposed in the path of the tooth on said wheel, the stops on successive rows lining staggered with relation to those on ad jarent rows, a ratchet carried by said shalt, an aetuatingpawl for said ratchet, a universal bar connected to actuate said pawl, and means whereby said universal bar may be iven movements of different extent as diforent keys are strurlr.

5. in a type writer, in mmbination, a platen, a series of type elements, a series of keys controlling said type elements, means For feeding said platen past the printingpoint, a rack carried by said platen, a pinion meshing with said rack, a toothed wheel connected to said pinion to rotate therewith in one direction, a sha'f t carrying aseries of rows of stops adapted to be interposed in. the path ol' the teeth on said wheel, the stops on sueeessive rows being staggered. with relation to those on adjacent rows, a ratchet carried by said shaft, an actuating-pawl forsaid ratchet, a universal bar connected to actuate said pawl, and means whereby said universal bar may be given movements of different extent as different keys are struck.

6. In a type-- writer, in combination, a

laten, a series of type elements, a series of lieys controlling said type elements, means for feeding said platen past the printingpoint, a rack carried by said platen, a pinion meshing with said rack, a toothed wheel connected to said pinion to rotate therewith, a shaft carrying a series of rows of stops adapted to be interposed in the path of the teeth on said wheel, the stops on successive rows being staggered with relation to those on adjacent rows, an actuating-pawl for said ratchet, a stop for limiting the movement of said pawl, a universal bar connected to actuate said pawl, and means wherebysaid universal bar may be given movements of different extent as different keys are struck.

7. In a type-writer, in combination, a series of type c ements, a series of keys controlling said type elements, a platen, means for feeding said platen ast the printing-point, a rack carried by said platen, apinion meshing with said rack, a toothed wheel connected to said pinion to rotate therewith, a shaft carrying a series of rows of sto 3s adapted to be interposed in the path 0 the teeth on said wheel, the stops on staggered with relation to those on adjacent rows, a ratchet carried by said shaft, an actuating-pawl for said ratchet, and a universal bar connected to actuate said pawl, said universal bar being actuated by the key-bars, the meeting faces of said universal bar and key-bars being differently shaped to give different movements of said universal bar upon actuation of dilferent keys.

8. In a type-writer, in combination, typekeys, a universal bar with which said keys are adapted to engage, a rock-shaft, a lever fixed to said shaft, connections between said universal bar and said lover, a second lever fixed upon said rock-shaft, a platen, means wherebv said platen is given a movement corresponding to the angle through which said second-mentioned lever is turned, and means whereby said universal bar is given a movement varying in extent with the shape of the successive rows being particular key forced into engagement therewith.

9. in a type writer, in combination, a. platen, a carriage upon which said platen is mounted, a rack upon said carriage, a pinion engaging said rack, 11 toothed wheel in fixed relation to said pinion, a series of rotatablymounted stops operatively positimied with respect to said toothed wheel, type -keys, means whereby said. stops are actuated upon the depression of said type-keys, and means whereby the extent oi movement of said stops is determined by the particular type key do ressod.

10. n a typewriter, in combinatiim, a platen, a carriage upon which said platen is mounted, a rack upon said carriage, a pinion enacting with said rack, 21. toothed wheel fixed u on the shaft of said pinion, a series of movab e stops in operative relation with said toothed wheel, a ratchet-wheel whereby said sto )s moved, type-keys, a universal bar, and means whereby said ratchet-wheel is actuated upon the depression of one of said type-keys the range of movement of said ratchet-wheel and the stop brought into op- 1 erativo relation with said toothed wheel dewendinlg upon the particular key de 'iressed. 1]. n a typewriter, in eon'ihination, a platen, a carriage. upon which said platen is mounted, a rack upon said carriage, a pinion reacting with said rack, a toothed wheel fixed u on the shaft of said pinion, a series of movab e stops in operative relation with said toothed wheel, a ratchet-wheel whereby said stops are moved, type-keys, a universal bar, and means whereby said ratchet-wheel is actuated upon the depression of one of said type-keys the nine of movement of said ratchet-wheel and t e stop brought into operative relation with said toothed wheel depending upon the shape of the particular key depresse l. I

12. in a type-writer, in combination, a platen, a carriage upon which said platen is mounted, means for putting said carnage under tension tending to feed it past the )rinting-point, means adapted to be rotated by the movement of said carriage, a series of rotatably-mounted, independent, relatively fixed stops adapted to be interposed in the path of said means to restrain the rotation thereof and movement of the carria e, a so ries of keys, and means under contro of sald keys adapted by an operation upon said series of relatively fixed stops to determine the re. tation of said secondmentioned means.

13. 'In a type-writer, in combination, a platen, a carriage upon wh ch "said platen is mounted, means {or putting said carriage under tension to feed it past the printingpoint, means adapted to be rotated by a movement of sai carriage, a series of, r0- tatably mounted, independent, relatively IIO fixed stops adapted to be interposed in the path of said means and restrain the rotation thereof and movement of the carriage, a series of keys, and means dependent u on the sha e of the particular key depresse ada ted y an operation upon said series of re atively fixed stops to determine the amount of rotation of said second-mentioned means.

14. In a type-writer, in combination, a carriage, means for putting said carriage under tension to feed it past the printin -point, a series of type elements, a series of eys connected to control said type elements, means adapted to be rotated by a movement of the carriage, a member comprising a series of independent stops adapted to restrain a rotation of said rotatable means, and means controlled by said keys adapted to actuate said restraining member to determine the amount of rotation of said aforementioned rotatable means, and means controlled by said keys ada ted to actuate said restraining member to (iiitermine the amount of rotation of said aforementioned rotatable means.

15. in a type-writer, in combination, a earriage, ineans for putting the same under tension tending to feed it past the printingpoint, means adapted to be rotated by a movement of the carriage, a series of type elements, a series of keys connected tl1er0- with, a rotatable member, a series of relatively fixed, independent stops positioned upon said rotatable member, each of said 5 stops being adapted to restrain a movement of said second-mentioned means when engaged therewith, and means for rotating said member to disengage one of said stops from said second mentioned means and allow a rotation thereof, the extent of said rotation being determined by the engagement thereof with another of said stops.

16. In a type-writing machine, in combination, a carriage, means for ntting the same under tension tending to iieed it past the tinting-point, means adapted to be retated of type elements, a series ofkeys connected therewith, a rotatable member, a series of relatively fixed, independent sto s positioned upon said member, each of sa" stops being adapted t restrain a movement of said second-mentioned means when engaged therewith, id means controlled by said keys for rotatig said member to disengage one of said/stops from said second-mentioned means to allow a rotation thereof and movement of the carriage, the extent of said rotation being determined by the shape of the particular key depressed.

In testimony whereof we affix our signatures in the presence of two witnesses.

' JOHN DFY.

AL E KAN DE R DEY Witnesses (Lannie M. JUNE, C. E. MCDONALD.

by a movement of the carriage, a series 

